July Weather in Belfast, United Kingdom

Last updated: March 17, 2025

July in Belfast, United Kingdom is characterized by a delightful mix of warm temperatures and occasional rain. With a maximum peak of 26°C (78°F) and an average of 15°C (60°F), the month offers a pleasant summer atmosphere, but evenings can cool down to a minimum of 8°C (47°F). Travelers should prepare for a splash of rain, as 84 mm (3.3 in) of precipitation falls over 14 rainy days, contributing to the city's lush greenery. Coupled with a humidity level of 86%, the weather is a reminder of Belfast’s maritime charm, making it essential to pack versatile clothing for this vibrant summer month.

July Temperature in Belfast

In Belfast, United Kingdom, July typically showcases the peak of summer warmth, with temperatures ranging from a minimum of 8°C (47°F) to a comfortable average of 15°C (60°F), reaching highs of around 26°C (78°F). This month is a significant contrast to the chillier winter months, where temperatures can plummet to as low as -4°C (26°F) in January. Compared to June, July maintains a similar high but with a slight increase in consistency and warmth, making it a favorite for outdoor activities and enjoying the vibrant city life. As August looms, temperatures gently dip, ensuring that July remains the highlight of Belfast's warmer season.

July Weather in Belfast: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Belfast, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424344475257605956514744
Data source: Temperature data for Belfast generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Belfast

In July, Belfast experiences an average precipitation of 84 mm (3.3 in) over 14 days, marking it as one of the wetter months of the year. This trend of increased rainfall follows the pattern established in June, which recorded 78 mm (3.1 in) and also had 14 days of precipitation. As summer progresses into August, the city braces for an even rainier month, with expected precipitation jumping to 115 mm (4.5 in). Such consistency in rainfall can give a sense of lushness to the region, yet it also highlights a summer characterized by frequent bouts of rain, which are a staple of Belfast's temperate maritime climate. This seasonal variability sets the stage for a vibrant, though occasionally soggy, landscape that's rich in greenery and life.

July Precipitation Trends in Belfast

The chart displays monthly precipitation patterns in Belfast, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6089804566788411575929491
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Belfast

In Belfast, July maintains a notable humidity level of 86%, aligning with the patterns observed in both June and August. This month sits comfortably within the yearly humidity range, which peaks in the cooler months of October and November at 89% and 90% respectively. Interestingly, the transition from spring to summer shows a gradual decline in humidity, with May recording 82%, before the levels stabilize in the late summer months. The persistent humidity throughout the year creates a damp atmosphere typical of this coastal region, setting the stage for its lush greenery and vibrant landscapes.

July Average Humidity in Belfast

This chart illustrates the average monthly humidity levels in Belfast, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Belfast

In July, Belfast experiences a UV Index of 8, placing it in the very high exposure category, similar to June. With a burn time of just 15 minutes, residents and visitors are urged to take protective measures against the sun's intensity. This peak in UV levels signifies a trend of increasing solar radiation as summer progresses, contrasting sharply with the low indices seen in the earlier months of the year. As we prepare for sunny days ahead, it's essential to stay informed and vigilant regarding sun safety. For more details on UV exposure in Belfast, visit Belfast UV Index.

Maximum UV Index Levels in Belfast for July

The chart shows the monthly maximum UV Index (UVI) for Belfast in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578865321
Data source: Belfast July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Belfast

Belfast basks in July's sunshine, enjoying a generous 399 hours of daylight, making it one of the brightest months of the year. This marks a slight decline from June's 394 hours, yet the warmth of summer remains palpable. As the year unfolds, sunlight steadily increases from January’s meager 81 hours, reaching a peak in late spring and summer, particularly in May with 403 hours. Following July, the sunlight begins to wane, tapering off to 349 hours in August and further dwindling into the cooler months. This trend underscores the fleeting nature of Belfast’s summer, inviting residents and visitors alike to savor every sun-drenched moment.

Monthly Sunshine Duration in Belfast: July Highlighted

The July sunshine duration represents the total number of hours Belfast experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec81h150h209h322h403h394h399h349h295h232h115h87h
Data source: Belfast July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Belfast During July

In Belfast, July showcases a modest 30% chance of sunny weather, positioning it as a somewhat brighter option compared to the cooler months. While this figure may not suggest a guarantee of sunny days, it does reflect a noticeable increase from the drizzly June, which sits at just 23%. The trend of improving sunshine potential is particularly evident as spring transitions into summer; April, for instance, boasts a 42% likelihood of sunlight, making it the sunniest month prior to July. However, as the summer wanes towards August, the chance of sunshine dips again to 21%. Thus, while July is not the sunniest month on record in Belfast, it offers a welcomed respite from the gloom of earlier months, inviting locals and visitors alike to embrace the fleeting summer rays.

Percentage of Sunny Days in July in Belfast

The chart illustrates the percentage of sunny days in Belfast throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Belfast experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%23%20%42%33%23%30%21%20%18%20%14%
Data source: Belfast July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Belfast in July

In Belfast, United Kingdom, July marks the peak of summer with a delightful 16 hours of daylight, allowing residents to fully embrace the long, sunlit days. This month follows June's extraordinary high of 17 hours, and while daylight begins to wane slightly in August to 14 hours, the overall duration remains impressive compared to the darker months of winter. As the year progresses, daylight gradually decreases from this summer zenith, dipping down to 11 hours in March and further to just 7 hours in December and January. This seasonal rhythm highlights the contrast between the vibrant, extended evenings of summer and the shorter, cozier days of winter, inviting Belfast's community to enjoy the abundant light while it lasts.

Average Daylight Hours in Belfast for July

The chart illustrates the variation in daylight duration in Belfast throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 56m9h 44m11h 54m14h 7m16h 5m17h 7m16h 34m14h 47m12h 38m10h 26m8h 27m7h 21m
Data source: Belfast daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Belfast

In July, Belfast enjoys a notable dip in wind speed, averaging just 2.6 m/s (6 mph), making it the calmest month of the year. This decrease follows a trend of moderately brisk winds during the spring and early summer months, where averages hovered around 3.5 to 4.8 m/s. With July’s gentle breezes, residents and visitors alike can relish in outdoor activities without the disruptive gusts typical of earlier months. As the city transitions into August, wind speeds rise slightly, hinting at a gradual return to the more blustery conditions experienced in the fall. This serene July atmosphere offers a perfect backdrop for enjoying the vibrancy of Belfast in prime summer.

Average July Wind Speed in Belfast

The chart displays monthly wind speed patterns in Belfast, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.36.24.83.53.93.82.6 m/s3.23.44.75.04.9
Data source: Belfast July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Belfast Compares to Other Months

The weather in Belfast changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Belfast and find detailed weather information for every month.

In July, Belfast experiences a milder climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), averaging around 15°C (60°F). Despite being one of the warmest months, it sees significant rainfall with 84 mm (3.3 in) over approximately 14 days and a high humidity level of 86%. In contrast, January brings much colder weather, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 14°C (57°F), averaging about 6°C (43°F). The colder month records less precipitation, totaling 60 mm (2.3 in) over about 10 days, accompanied by a similarly high humidity of 87%. For more specifics about January weather, you can check Belfast weather in January.

July and February exhibit contrasting weather patterns, highlighting the seasonal differences in climate. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), creating a warm average of 15°C (60°F) ideal for outdoor activities. February, on the other hand, experiences much cooler temperatures, with a minimum of -2°C (28°F) and a maximum of 13°C (56°F), yielding a chilly average of 6°C (43°F). Both months see similar levels of precipitation at around 84 mm (3.3 in) in July and 89 mm (3.5 in) in February, with rain occurring on about 14 days in each month. The humidity remains consistently high at 86% for both months, contributing to a sense of dampness common in the region. For more detailed information on February weather, check out Belfast weather in February.

In comparing the weather between July and March, significant differences in temperature and overall conditions are evident. July boasts a milder climate, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), making it a considerably warmer month compared to March, which sees a minimum of -3°C (27°F) and an average high of only 16°C (60°F). Interestingly, precipitation levels are quite similar, with July receiving 84 mm (3.3 in) over 14 days and March recording 80 mm (3.2 in) across 16 days; both months also share a high humidity level of 86%. For a more detailed overview, you can check out the Belfast weather in March.

The weather in July is significantly warmer than in April, with average temperatures reaching 15°C (60°F) compared to April's average of 8°C (47°F). In July, temperatures can rise to a maximum of 26°C (78°F), while April sees a peak of only 18°C (65°F). Additionally, July experiences more precipitation, with 84 mm (3.3 in) falling over 14 days, compared to April's 45 mm (1.8 in) over 10 days. Both months have similar humidity levels, with July at 86% and April at 85%. For more detailed information, you can check Belfast weather in April.

In comparison to May, July experiences significantly warmer temperatures, with average highs reaching 26°C (78°F) compared to May's peak of 22°C (71°F). The minimum temperatures also rise, with July starting at 8°C (47°F) while May begins at just 1°C (34°F). Additionally, July sees increased precipitation, totaling 84 mm (3.3 in) over 14 days, whereas May has slightly less rainfall at 66 mm (2.6 in) over 13 days. Humidity levels are relatively high in both months, with July at 86% and May at 82%. For a detailed overview of May's weather, you can refer to Belfast weather in May.

In comparing the weather between June and July, July generally offers slightly warmer temperatures, with a minimum of 8°C (47°F) and an average of 15°C (60°F) compared to June's minimum of 6°C (43°F) and average of 14°C (57°F). Both months share the same maximum temperature of 26°C (79°F), indicating that they can experience similar peak warmth. When it comes to precipitation, July records a bit more rainfall at 84 mm (3.3 in) over 14 days, compared to June's 78 mm (3.1 in) over the same number of days. Additionally, July has a higher humidity level at 86%, while June is slightly lower at 84%. For a detailed look at June's weather, you can check Belfast weather in June.

In comparing the weather of July and August, both months exhibit a minimum temperature around 8°C (46-47°F) and an average temperature close to 15°C (59-60°F). However, August tends to be slightly cooler, with a maximum temperature of only 22°C (71°F) compared to July's 26°C (78°F). Precipitation levels increase notably in August, with 115 mm (4.5 in) falling over 19 days, compared to July's 84 mm (3.3 in) across 14 days. Despite the higher precipitation, both months maintain a consistent humidity level of 86%. For more details on August weather specifically, check out Belfast weather in August.

In July, the weather is generally warmer with a minimum temperature of 8°C (47°F) and a maximum of 26°C (78°F), leading to an average of 15°C (60°F). Despite its warmth, July experiences significant humidity at 86% and considerable rainfall, totaling 84 mm (3.3 in) over about 14 days. In contrast, September sees cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 21°C (71°F), resulting in an average of 13°C (56°F). Although September has slightly less rainfall at 75 mm (3.0 in), it has a slightly higher number of rainy days, with precipitation occurring on about 15 days, and humidity remains elevated at 88%. For those looking to explore the weather specifics, here's a detailed overview: Belfast weather in September.

July and October present a notable contrast in weather patterns. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), averaging around 15°C (60°F). Despite being the warmest month, July experiences significant rainfall, accumulating 84 mm (3.3 in) over 14 days, contributing to a high humidity level of 86%. In contrast, October brings cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 18°C (65°F), averaging 11°C (52°F). The month sees slightly higher precipitation at 92 mm (3.6 in) over 15 days, with humidity rising to 89%. For more detailed insights, you can check out Belfast weather in October.

In July, the weather is significantly warmer with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), making it a much more pleasant time for outdoor activities. The average temperature sits at 15°C (60°F), and while there is some precipitation, totaling 84 mm (3.3 in) over approximately 14 days, the humidity level at 86% can make it feel quite sticky.

In contrast, November ushers in cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 15°C (59°F), averaging around 8°C (47°F). Rainfall increases slightly to 94 mm (3.7 in) over about 15 days, and humidity rises to 90%, contributing to a damp and chilly atmosphere. Those interested in understanding the weather in November can explore more details at Belfast weather in November.

In July, the weather is notably warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (78°F), while December sees cooler temperatures, with lows plummeting to -1°C (30°F) and highs only reaching 13°C (56°F). Both months experience high humidity levels of 86%, but they differ in precipitation; July has 84 mm (3.3 in) of rain over 14 days, whereas December receives slightly more at 91 mm (3.6 in) across 15 days. For a closer look at the December weather patterns, you can check out Belfast weather in December.

Compare Belfast's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Belfast

In July, Belfast experiences a delightful shift in weather, offering a noticeable departure from the cooler months. With pleasant temperatures peaking at a maximum of 26°C (78°F), the lively atmosphere invites both locals and tourists to explore the city's vibrant outdoor scenes. While the month does see its fair share of rainfall, averaging 84 mm (3.3 in) over about half the days, the high humidity of 86% adds a lushness to the landscape. This combination of warmth and moisture creates the perfect backdrop for enjoying the long daylight hours that July provides. For more insights into how July weather shapes the overall climate, visit Belfast Climate.